An electron, starting from rest and moving with a constant acceleration, travels 2.0 cm in 5.0 ms. What is the magnitude of this acceleration?
A. 2.5 km/s2
B. 0.80 km/s2
C. 1.6 km/s2
D. 1.3 km/s2
E. 3.2 km/s2
Answer: C
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A pilot drops a package from a plane flying horizontally at a constant speed. Neglecting air resistance, when the package hits the ground the horizontal location of the plane will
A) be behind the package. B) be over the package. C) be in front of the package. D) depend of the speed of the plane when the package was released.
Briefly summarize the observed patterns of motion in our solar system that are consistent with the nebular theory
What will be an ideal response?
Momentum: What is the magnitude of the momentum of a 0.140 kg baseball traveling at 45.0 m/s?
Fill in the blank(s) with the appropriate word(s).
Aline and Charlie are arguing as to whether or not it is possible in principle for an elevator to have an acceleration of magnitude greater than
. In the course of their discussion they come up with the statements below. Which one is correct?
A.
reaches , the elevator is in free fall.B.
is not possible.C.
when the cable breaks.D.
if the motor is strong enough.E.